204422051 has 2 divisors, whose sum is σ = 204422052. Its totient is φ = 204422050.

The previous prime is 204422033. The next prime is 204422063. The reversal of 204422051 is 150224402.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204422051 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (204422011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102211025 + 102211026.

It is an arithmetic number, because the mean of its divisors is an integer number (102211026).

Almost surely, 2^204422051 is an apocalyptic number.

204422051 is a deficient number, since it is larger than the sum of its proper divisors (1).

204422051 is an equidigital number, since it uses as much as digits as its factorization.

204422051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 204422051 is about 14297.6239634423. The cubic root of 204422051 is about 589.0822185788.

Adding to 204422051 its reverse (150224402), we get a palindrome (354646453).

The spelling of 204422051 in words is "two hundred four million, four hundred twenty-two thousand, fifty-one".